Core Java Tutorial

Java Tutorial for Beginners: After so many requests from SoftwareTestingo visitors for the Core Java Tutorials, we have the plan to build a platform where everyone can learn java online for free. But we are making this platform for testers, so we have shared the java tutorial, which Java Selenium Testers require.

We are trying to cover all of those topics required for java selenium testers. And for that, finally, we have prepared the complete list and the tutorial post. By following all these Java tutorials, any beginner can learn java online quickly without anyone’s help.

Learn Java for Beginners

This core java tutorial post systematically contains all the links to all the covered topics, starting from the java tutorials for beginners to the advanced topics. We have prepared these tutorials so that they will help all category people of all categories. For a college student interested in learning Java programming online or a working employee interested in understanding and implementing those for building an application or in their work as well, on all these things, these tutorials will help you.

Learn Core Java Tutorial

To Learn java from scratch, one of the most demanded languages globally, refer to these tutorials in a given order. We keep in mind that these oracle java tutorials will be helpful to all levels of learners, so if you don’t have any prior knowledge, you won’t face any difficulty in understanding these tutorials.

If you have any prior knowledge of Java, you may know what Java is. we are preparing this tutorial from a beginner’s point of view, So we have to start with the basics like:

What is Java Language?

Java is one of the commanding general-purpose programming languages. Using this Java programming language, we can develop various types of mobile and desktop applications and embedded systems if you count the number of benefits of Javed in the list Will Go On.

Sun Microsystem developed this popular Java programming language, but later on, Oracle acquired Java. The official statement of uses of Java programming language then you can find out that there are more than 3 billion + active users or active downloads of Java programming software, which sources the popularity of Java programming language.

So let’s start learning Java & also try to learn to code java, which software testingo blogs, and it’s entirely free for the learners. Let’s start with some basic concepts of Java, which will help learn Java programming for beginners with some step-by-step tutorials and simple Java programs.

What is Core Java?

In learning Java programming language, it may be hard to understand the basic terms of Java, which are Core Java and Advanced Java. So before digging into the Java tutorial concept, little do you know about the core java and Advanced Java.

• Core Java
• Advanced Java

Core Java: Sun Microsystem uses the term Core Java. Which is a basic version of Java, which refers to the collection of libraries rather than the programming language. it is a standalone Java application that covers various topics like the OOPS concept, operators, data types, wrapper classes, collection & and exception handling

Advanced Java: Advanced Java is also one of the parts of the Java programming language. But you can even say that the adventure is everything beyond Core Java. Advance Java, mostly the API, is defined in Java Enterprise Edition (JEE), including servlet programming and web Services. It is also a combination of web and enterprise application development, mainly following client and server architecture.

Core Java Tutorial For Beginners

• History Of Java
• Difference Between JDK, JVM, and JVM
• Java Programming Languages Features
• Java Installation Windows
• Set Java_Home Variable
• Java Hello World Program
• Variables in Java
• Java Data Types
• Java Method
• Java Operators
• If-else in Java
• Switch Cases in Java
• Java for loop
• Java while loop
• Java do-while loop
• Java static keyword
• Java break keyword
• Java continue keyword

Core Java Tutorial – Object-Oriented Concepts

• Constructor in Java
• OOPS Concepts In Java
• Java Access Modifiers – public, protected, private, and default
• Composition in Java
• Inheritance in Java
• Aggregation in Java
• Association in Java
• Super Keyword in Java
• Method overloading in Java
• Method overriding in Java
• Polymorphism in Java & Types of polymorphism in Java
• Static and dynamic binding in Java
• Composition vs. Inheritance in Java
• Java Inner Classes [ Nested Class ]
• Java Autoboxing and Unboxing
• Java Wrapper Classes
• Java Ternary Operator
• Java Encapsulation with example
• Package In Java
• Abstract Class in Java
• Interface in Java
• Difference between Abstract Class and Interface in Java
• Garbage Collection in Java
• final keyword In Java

Core Java Tutorial – String Manipulation

• String Comparison
• String immutable
• String Builder
• Java StringBuffer Class
• String Basic
• Why is String immutable and final?
• Understanding Java String Pool
• Java String subsequence
• Java String compareTo()
• Java String substring
• Converting String to char
• Convert String to CharArray
• Java Split String
• Convert String to Byte Array Java
• Convert Byte Array to String Java
• String to char array
• Java String concatenation
• String, StringBuffer, and StringBuilder in Java
• String Programs in Java
• Arrays Java
• Declare & Initialize an Array in Java
• Two-dimensional array in java
• Java Array of ArrayList
• String to String Array Example
• Java Variable Arguments Explained
• Java Array adds elements
• Sorting an Array in Java
• Java String Array to String
• Java ArrayList to Array
• Converting Array to ArrayList in Java
• How to copy arrays in Java
• Core Java Tutorial – Annotation and Enum
• Java Annotations Tutorial
• Java @Override Annotation
• Java Enum Example Tutorial

Core Java Tutorial – Collection & Generics

• Java Collections Framework Tutorial
• Java List <interface> [ ArrayList, LinkedList, Vector & Stack ]
• Java Set <interface>[ HashSet, LinkedHashSet & TreeSet ]
• Java SortedSet <interface>
• Java NavigableSet <interface>
• Java Queue <interface> [ LinkedList, PriorityQueue & Dequeue ]
• Java Map <interface> [ HashMap, LinkedHashMap, HashTable & TreeMap ]
• Java Sorted Map <interface>
• Java Navigable Map <interface>
• Java ArrayList <class>
• Java LinkedList <class>
• Vector in Java <class>
• Java Stack <class>
• Java HashSet <class>
• LinkedHashSet In Java <class>
• Java TreeSet <class>
• Java HashMap <class>
• Hashtable in Java <class>
• Java LinkedHashMap <class>
• Java TreeMap <class>
• PriorityQueue <class>
• Deque <class>
• ArrayDeque
• Comparable and Comparator Interface in Java
• Java Iterator & ListIterator
• Java PriorityQueue Example
• ArrayList vs CopyOnWriteArrayList
• How to avoid ConcurrentModificationException when using an Iterator
• Java Generics Example Tutorial

Core Java Tutorial – IO Operations

• Create a New File in Java
• Delete a File in Java
• File separators in Java
• Delete a Directory in Java
• Open a File in Java
• Rename and Move a File in Java
• Getting File Size in Java
• Get File Extension in Java
• How to check if a File exists in Java
• How to check if a File is a Directory in Java
• How to get a File’s last modified date in Java
• Java FileNameFilter example to list specific files
• Java File Path, Absolute Path, and Canonical Path Explained
• How to set File Permissions in Java
• Four ways to Copy File in Java
• Reading File in Java using BufferedReader, Scanner, Files
• Java Scanner Class
• Read a File to String in Java
• Java Read file line by line
• How to write a File in Java
• How to append data to a File in Java
• Converting InputStream to File
• Java Random Access File Example
• Download File from URL Example
• Java GZip Example
• Temp Files in Java
• Reading a CSV File using Java Scanner Class
• Java Property File Example

Core Java Tutorial – Exception Handling

• Exception Error Hierarchy
• Exception Handling in Java
• Java try-catch block
• Java finally block
• Throw and Throws in Java
• Custom Exception in Java
• Arithmetic Exception In Java
• ClassCastException
• java.lang.NoSuchMethodError
• java.lang.NullPointerException

Core Java Tutorial – MultiThreading and Concurrency

• Threads in Java
• Thread Life Cycle
• Thread Sleep Example
• Thread join Example
• Thread wait, notify, notifyAll Example
• Thread Safety in Java – Synchronization
• Java ThreadLocal Example
• Java Timer and TimerTask Example
• Java Thread Pool Example
• Java Callable Future Example
• Java FutureTask Example
• Java ScheduledThreadPoolExecutor Example
• Java Lock Example

Core Java Tutorial – Regular Expressions

• Regular Expressions in Java Example Tutorial
• Validating Email Address using Regular Expression in Java
• Validating Phone Number using Regex in Java
• Core Java Reflection API
• Java Reflection API Tutorial

Java 7

• String in switch case
• Try with Resources – Java ARM
• Binary Literals in Java
• Underscores in Numeric Literals
• Catching Multiple Exceptions in a single catch block
• Java PosixFilePermission example to set File Permissions

Java 8

• Java 8 Features Overview
• Java 8 interface changes
• Lambda Expressions in Java
• Stream API in Java
• Java Date Time API Example Tutorial
• Java Spliterator

Java 9

• Java 9 Features
• Java 9 private method in interfaces
• Java 9 try-with-resources improvements
• Java 9 Optional class improvements
• Java 9 Stream API improvements
• Java 9 “var” for local variables
• Java 9 “_” (underscore) changes
• Java 9 Factory Methods for Immutable List
• Java 9 Factory Methods for Immutable Set
• Java 9 Factory Methods for Immutable Map
• Java 9 Modules
• Java 9 Module Basics Part 2
• Develop Java Module using Command Prompt
• Develop Java Module using Eclipse
• Develop Java Module using IntelliJ IDEA

Java 10

• Java 10 Features
• Java 10 Local Variable Type Inference

Java 11

• Java 11 Features
• 6 New Methods in Java 11 String Class
• Core Java Tutorial – Advanced Topics
• Java Heap Memory and Stack Memory
• Java is Pass by Value and not Pass by Reference
• JVM Memory Model and Garbage Collection
• Serialization in Java
• Java System Class
• Internationalization (i18n) in Java
• Atomic Operations in Java
• Thread Dump in Java
• Deadlocks in Java
• Sorting Objects in Java
• Understanding JDK, JRE, and JVM
• Java Classloader Example Tutorial
• Java clone object

Java Interview Questions

• Java Collection Interview Questions
• Core Java Interview Questions

Simple Java Program

We are sharing all the Core Java tutorials with you, but now we will share some of the programming basics. This will helps you to get a better understanding of programming knowledge also, and it will be more practical to learn Java programming for beginners & java programming examples.

Also, we will share all the programming concepts section-wise with some simple java program examples. So we request you to go through all the simple java programs for beginners so you can get better knowledge and an idea of how beginners can write these programs.

We hope we have covered all the required tutorials for Java Selenium testers. But if you think that we have missed out on something, please go ahead and comment below. I will write something on that and add that to the list.